Minor UI improvements and fixed test

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

app/views/projects/merge_requests/_new_compare.html.haml

-%h3.page-title Compare changes for new merge request
+%h3.page-title Compare branches for new Merge Request
 %hr
 
 = form_for [@project, @merge_request], url: new_project_merge_request_path(@project), method: :get, html: { class: "merge-request-form form-inline" } do |f|
@@ -45,8 +45,8 @@
             %span.label-branch #{@merge_request.target_branch}
             are the same.
 
-  .form-actions
-    = f.submit 'Compare branches', class: "btn btn-primary"
+  %hr
+  = f.submit 'Compare branches', class: "btn btn-primary"
 
 :javascript
   var source_branch = $("#merge_request_source_branch")

app/views/projects/merge_requests/_new_submit.html.haml

@@ -51,7 +51,7 @@
       = f.hidden_field :target_project_id
       = f.hidden_field :target_branch
       = f.hidden_field :source_branch
-      = f.submit 'Submit a merge request', class: "btn btn-create"
+      = f.submit 'Submit merge request', class: "btn btn-create"
 
 .mr-compare
   %div.ui-box

features/steps/project/merge_requests.rb

@@ -61,9 +61,10 @@ class ProjectMergeRequests < Spinach::FeatureSteps
   end
 
   step 'I submit new merge request "Wiki Feature"' do
-    fill_in "merge_request_title", with: "Wiki Feature"
     select "master", from: "merge_request_source_branch"
     select "notes_refactoring", from: "merge_request_target_branch"
+    click_button "Compare branches"
+    fill_in "merge_request_title", with: "Wiki Feature"
     click_button "Submit merge request"
   end